26440412454 has 96 divisors (see below), whose sum is σ = 59731832160. Its totient is φ = 8445482496.

The previous prime is 26440412447. The next prime is 26440412503. The reversal of 26440412454 is 45421404462.

26440412454 is a `hidden beast` number, since 2 + 6 + 4 + 404 + 1 + 245 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18196392 + ... + 18197844.

It is an arithmetic number, because the mean of its divisors is an integer number (622206585).

Almost surely, 2^26440412454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26440412454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29865916080).

26440412454 is an abundant number, since it is smaller than the sum of its proper divisors (33291419706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26440412454 is a wasteful number, since it uses less digits than its factorization.

26440412454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

The spelling of 26440412454 in words is "twenty-six billion, four hundred forty million, four hundred twelve thousand, four hundred fifty-four".